Wilson Fermions with Four Fermion Interactions

Jarno Rantaharju, Vincent Drach, Ari Hietanen, Claudio Pica, Francesco Sannino

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Abstrakt

We present a lattice study of a four fermion theory, known as Nambu Jona-Lasinio (NJL) theory, via Wilson fermions. Four fermion interactions naturally occur in several extensions of the Standard Model as a low energy parameterisation of a more fundamental theory. In models of dynamical electroweak symmetry breaking these operators, at an effective level, are used to endow the Standard Model fermions with masses. Furthermore these operators, when sufficiently strong, can drastically modify the fundamental composite dynamics by, for example, turning a strongly coupled infrared conformal theory into a (near) conformal one with desirable features for model building. As first step, we study spontaneous chiral symmetry breaking for the lattice version of the NJL model.
OriginalsprogEngelsk
TidsskriftP o S - Proceedings of Science
Vol/bind251
Antal sider7
ISSN1824-8039
DOI
StatusUdgivet - 12. nov. 2015
Begivenhed33rd International Symposium on Lattice Field Theory - Kobe Convention Center, Kobe, Japan
Varighed: 14. jul. 201518. jul. 2015

Konference

Konference33rd International Symposium on Lattice Field Theory
LokationKobe Convention Center
LandJapan
ByKobe
Periode14/07/201518/07/2015

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